Câu hỏi:
27/04/2022 338Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 30 to 34
Scientists estimate that about 35,000 other objects, too small to detect with radar but detectable with powerful Earth-based telescopes, are also circling the Earth at an altitude of 200 to 700 miles. This debris poses little danger to us on the Earth, but since it is traveling at average relative speeds of six miles per second, it can severely damage expensive equipment in a collision. This threat was dramatized by a cavity one-eighth of an inch in diameter created in a window of a United States space shuttle in 1983. The pit was determined to have been caused by a collision with a speck of paint traveling at a speed of about two to four miles per second. The window had to be replaced.
As more and more nations put satellites into space, the risk of collision can only increase. Measures are already being taken to control the growth of orbital debris. The United States has always required its astronauts to bag their wastes and return them to Earth. The United States Air Force has agreed to conduct low-altitude rather than high-altitude tests of objects it puts into space so debris from tests will reenter the Earth's atmosphere and burn up. Extra shielding will also reduce the risk of damage. For example, 2,000 pounds of additional shielding is being considered for each of six space-station crew modules. Further, the European Space Agency, an international consortium is also looking into preventive measures.
Which of the following would be the best title for the passage?
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Trả lời:
“Đâu là tiêu đề phù hợp nhất cho đoạn văn?”
A. Vấn đề mảnh vỡ không gian
B. Tàu con thoi năm 1983
C. Công việc của Cơ quan Vũ trụ Châu Âu
D. Va chạm trong không gian
Trong cả đoạn văn, suất hiện nhiều lần từ “Debris”- đây chính là từ khóa chính của cả bài.
Đoạn 1 chủ yếu nói về những tác hại của mảnh vỡ đến những thiết bị trên không gian. Đoạn thứ 2 nói về các giải pháp được đề ra để khắc phụ những hậu quả do mảnh vỡ trên không gian đem lại
Chọn A
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
It’s time to say goodbye. Well, I’m looking forward _____ you all again soon.
Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Alex was ________ enough on becoming a professional sportsman and he didn’t want to listen to anybody else’s advice.
Câu 3:
It can be inferred from the passage that debris was harmful to one of the space shuttles because the debris was _________
Câu 4:
He couldn’t ride his bike __________ there’s no air in one of the tyres.
Câu 5:
In spite of his poverty, he led a devoted life to the revolutionary cause.
Câu 6:
Since 1950 the world ______ nearly one-fifth of the soil from its agricultural land and one-fifth of its tropical forests.
Câu 7:
What effect did orbital debris have on one of the space shuttles?
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